| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 51988-26-2 | | 4-[[4-[(2-hydroxy-1-naphthalenyl)azo]phenyl]azo]-benzenesulfonic aci monoli | | | | |
| 51988-36-4 | 3-(丙酰氧基)苯甲酸 | 3-propionyloxybenzoic acid | | | | |
| 51989-44-7 | | phosphorothioic acid, s-((4-(aminomethyl)-5-hydroxy-6-methyl-3-pyridinyl)methyl | | | | |
| 51989-45-8 | | phosphorothioic acid, s-((5-hydroxy-4-(hydroxymethyl)-6-methyl-3-pyridinyl)meth | | | | |
| 51989-47-0 | | 4'-hydroxybupivacaine | | | | |
| 5199-12-2 | | 3-methyl-5-piperidinomethylene-rhodanin | | | | |
| 51990-04-6 | | eradicane | | | | |
| 51990-55-7 | 甲醛与磺酰基二[苯酚]的聚合物 | Formaldehyde, polymer with sulfonylbis[phenol] | | | | |
| 51991-94-7 | 5-氧代-5h-噻唑并[3,2-a]嘧啶-6-甲酸 | 5-oxo-5h-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylic acid | | | | |
| 51992-11-1 | | 4-oxo-4-[(3,3,5-trimethylcyclohexyl)amino]but-2-enoic acid | C13H21NO3 | | | |
| 51994-35-5 | | 5-(4-biphenyl)-5-oxovaleric acid | | | | |
| 51994-93-5 | 2-甲基-2-丙酸丁酯与2-丙烯酸丁酯、2-甲基-2-丙烯酸-2-羟基乙酯和2-甲基-2-丙烯酸甲酯的聚合物 | 2-Propenoic acid, 2-methyl-, butyl ester, polymer with butyl 2-propenoate, 2-hydroxyethyl 2-methyl-2-propenoate and methyl 2-methyl-2-propenoate | (C8H14O2·C7H12O2·C6H10O3·C5H8O2)x | | | |
| 51995-05-2 | | bis(2-butoxyethyl) (2e)-2-butenedioate | | | | |
| 51996-87-3 | | Magnesium,dichlorobis[1,3,5,7-tetraazatricyclo[3.3.1.13,7]decane-N1]-decahydrate,(T-4)- | | | | |
| 51997-29-6 | | Vanadate(1-),hexafluoro-,potassium,(OC-6-11)- | F6KV | 204.03 | | |
| 51997-43-4 | | carazolol hydrochloride salt | | | | |
| 51997-51-4 | 4-(2,3-环氧丙氧基)咔唑 | 4-(2,3-Epoxyropoxy)carbazole | C15H16NO2 | | | |
| 51998-05-1 | 2-(异氰酸甲酯基)四氢呋喃 | 2-(isocyanatomethyl)tetrahydrofuran | | | | |
| 51999-23-6 | | te and n-(hydroxymethyl)-2-propenamide | | | | |
| 52-01-7 | 螺内酯 | 17-hydroxy-7-alpha-mercapto-3-oxo-17-alpha-pregn-4-ene-21-carboxylic aci ga | C24H32O4S | 416.57 | 198-207℃ | |
| 52-21-1 | 醋酸泼尼松龙 | 4-diene-3,20-dione, 11-beta,17,21-trihydroxy-pregna- 21-acetate | C23H30O6 | 402.48 | | |
| 52-24-4 | 噻替派 | tris(1-aziridinyl)-phosphine sulfid | C6H12N3PS | 189.22 | 54-57℃ | |
| 52-26-6 | 硫酸吗啡 | morphinan-3,6-diol, 7,8-didehydro-4,5-epoxy-17-methyl-, hydrochloride, (5-alpha | C34H40N2O10S | | | |
| 52-28-8 | 磷酸可待因 | 7,8-didehydro-4,5-alpha-epoxy-3-methoxy-17-methyl-morphinan-6-alpha-o phosp | C18H24NO7P | | | |
| 52-30-2 | | 2,4-diaza-8-silaspiro(5.5)undecane-1,3,5-trione, 8,8-dimethyl-11-ethyl | | | | |
| 52-31-3 | | 5-(1-cyclohexen-1-yl)-5-ethyl-barbituric aci | C12H16N2O3 | 236.27 | | |
| 52-39-1 | 醛固酮 | 21-dihydroxy-3,20-dioxo- 1 (11-beta)-pregn-4-en-18-a | C21H28O5 | 360.45 | | |
| 52-41-5 | | 3,5-trione, 8,8-dimethyl-4-diaza-8-silaspiro(5.5)undecane-1 | | | | |
| 52-42-6 | | 5-dione, 8,8-dimethyl-3-thio-4-diaza-8-silaspiro(5.5)undecane-1 | | | | |
| 52-43-7 | 二烯丙基丙二酰脲 | 5,5-diallyl-barbituric aci | C10H12N2O3 | 208.21 | | |
| 52-44-8 | | 2,4-diazaspiro(5.5)undecane-1,3,5-trione | | | | |
| 52-45-9 | | 5-dione, 3-thioxo-4-diazaspiro(5.5)undecane-1 | | | | |
| 52-46-0 | | 1,3,5,2,4,6-triazatriphosphorine, 2,2,4,4,6,6-hexakis(1-aziridinyl)-2,2,4,4,6,6 | C12H24N9P3 | 387.30 | | |
| 52-47-1 | | a-nor-17-alpha-pregn-20-ene-2-beta,17-beta-diol, 2-alpha-ethynyl-20,21,21-trifl | | | | |
| 52-49-3 | 安坦 | alpha-cyclohexyl-alpha-phenyl-1-piperidinepropano hydrochloride | C20H32ClNO | | | |
| 52-51-7 | 2-溴-2-硝基-1,3-丙二醇 | 2-Bromo-2-nitro-1,3-propanediol | C3H6BrNO4 | 199.99 | 120℃ | |
| 52-52-8 | 环亮氨酸 | 1-amino-1-cyclopentanecarboxylic acid | C6H11NO2 | 129.16 | | |
| 52-53-9 | 维拉帕米 | 2-isopropy l- | C27H38N2O4 | 454.59 | | |
| 52-55-1 | | 3,5-trione, 8,8,11-trimethyl-4-diaza-8-silaspiro(5.5)undecane-1 | | | | |
| 52-56-2 | | 3,5-trione, 8,8-dimethyl-4-diaza-8-silaspiro(5.6)dodecane-1 | | | | |
| 52-57-3 | | 5-dione, 8,8-dimethyl-3-thio-4-diaza-8-silaspiro(5.6)dodecane-1 | | | | |
| 52-60-8 | | phosphorothioic acid, o,o-diethyl o-(4-(methylthio)-3,5-xylyl) ester | | | | |
| 52-61-9 | | 3-acetyloxy-1-benzyl-1-methyl-pyrrolidiniu bromide | | | | |
| 52-62-0 | | 1,1'-pentamethylenebis(1-methyl-pyrrolidiniu tartrate (1:2) | C23H42N2O12 | 538.59 | 213℃ | |
| 52-64-2 | | glycine-2-14c | C2H5NO2 | 75.06 | | |
| 52-66-4 | DL-青霉胺 | β,β-Dimethyl-DL-cysteine | C5H11NO2S | 149.20 | 208-212℃ | |
| 52-67-5 | 青霉胺 | d-valin | C5H11NO2S | 149.21 | 212℃ | |
| 52-68-6 | 敌百虫 | Trichlorfon | C4H8Cl3O4P | 257.44 | 77-81℃ | |
| 52-72-2 | | 3-alpha-hydroxy-2-beta-morpholino-5-alpha-androstan-17-on | | | | |
| 52-73-3 | | 17-beta-diol, 2-alpha-ethynyl-17-alpha-methyl-a-norandrostane-2-bet | | | | |
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